Airworthiness Directives; Bombardier, Inc. Airplanes, 20453-20455 [2017-08830]
Download as PDF
Federal Register / Vol. 82, No. 83 / Tuesday, May 2, 2017 / Proposed Rules
be emailed to: 9-ANM-LAACO-AMOCRequests@faa.gov.
(2) Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office.
(3) An AMOC that provides an acceptable
level of safety may be used for any repair,
modification, or alteration required by this
AD if it is approved by the Boeing
Commercial Airplanes Organization
Designation Authorization (ODA) that has
been authorized by the Manager, Seattle
ACO, to make those findings. To be
approved, the repair method, modification
deviation, or alteration deviation must meet
the certification basis of the airplane, and the
approval must specifically refer to this AD.
(4) Except as required by paragraph (h)(2)
of this AD: For service information that
contains steps that are labeled as Required
for Compliance (RC), the provisions of
paragraphs (k)(4)(i) and (k)(4)(ii) of this AD
apply.
(i) The steps labeled as RC, including
substeps under an RC step and any figures
identified in an RC step, must be done to
comply with the AD. If a step or substep is
labeled ‘‘RC Exempt,’’ then the RC
requirement is removed from that step or
substep. An AMOC is required for any
deviations to RC steps, including substeps
and identified figures.
(ii) Steps not labeled as RC may be
deviated from using accepted methods in
accordance with the operator’s maintenance
or inspection program without obtaining
approval of an AMOC, provided the RC steps,
including substeps and identified figures, can
still be done as specified, and the airplane
can be put back in an airworthy condition.
jstallworth on DSK7TPTVN1PROD with PROPOSALS
(l) Related Information
(1) For more information about this AD,
contact Wade Sullivan, Aerospace Engineer,
Airframe Branch, ANM–120S, FAA, Seattle
Aircraft Certification Office (ACO), 1601 Lind
Avenue SW., Renton, WA 98057–3356;
phone: 425–917–6430; fax: 425–917–6590;
email: wade.sullivan@faa.gov.
(2) For information about AMOCs, contact
Jennifer Tsakoumakis, Airframe Branch,
ANM–120L, FAA, Los Angeles Aircraft
Certification Office (ACO), 3960 Paramount
Boulevard, Lakewood, CA 90712–4137;
phone: 562–627–5264; fax: 562–627–5210;
email: jennifer.tsakoumakis@faa.gov.
(3) For service information identified in
this AD, contact Boeing Commercial
Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd.,
MC 110–SK57, Seal Beach, CA 90740–5600;
telephone 562–797–1717; Internet https://
www.myboeingfleet.com. You may view this
referenced service information at the FAA,
Transport Airplane Directorate, 1601 Lind
Avenue SW., Renton, WA. For information
on the availability of this material at the
FAA, call 425–227–1221.
VerDate Sep<11>2014
14:40 May 01, 2017
Jkt 241001
Issued in Renton, Washington, on April 24,
2017.
Paul Bernado,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2017–08831 Filed 5–1–17; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2017–0331; Directorate
Identifier 2016–NM–213–AD]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc. Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for certain
Bombardier, Inc. Model DHC–8–102,
–103, –106, –201, –202, –301, –311, and
–315 airplanes. This proposed AD was
prompted by reports of undamped main
landing gear (MLG) extension in-service.
This proposed AD would require
replacement of the MLG retraction
actuator rod-ends on both MLG
assemblies. We are proposing this AD to
address the unsafe condition on these
products.
SUMMARY:
We must receive comments on
this proposed AD by June 16, 2017.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: 202–493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE.,
Washington, DC 20590.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this NPRM, contact Bombardier, Inc., QSeries Technical Help Desk, 123 Garratt
Boulevard, Toronto, Ontario M3K 1Y5,
Canada; telephone 416–375–4000; fax
416–375–4539; email thd.qseries@
aero.bombardier.com; Internet https://
www.bombardier.com. You may view
this referenced service information at
the FAA, Transport Airplane
DATES:
PO 00000
Frm 00004
Fmt 4702
Sfmt 4702
20453
Directorate, 1601 Lind Avenue SW.,
Renton, WA. For information on the
availability of this material at the FAA,
call 425–227–1221.
Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2017–
0331; or in person at the Docket
Management Facility between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this proposed AD, the
regulatory evaluation, any comments
received, and other information. The
street address for the Docket Operations
office (telephone 800–647–5527) is in
the ADDRESSES section. Comments will
be available in the AD docket shortly
after receipt.
FOR FURTHER INFORMATION CONTACT:
Fabio Buttitta, Aerospace Engineer,
Airframe and Mechanical Systems
Branch, ANE–171, FAA, New York
Aircraft Certification Office (ACO), 1600
Stewart Avenue, Suite 410, Westbury,
NY 11590; telephone 516–228–7303; fax
516–794–5531.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposal. Send your comments to
an address listed under the ADDRESSES
section. Include ‘‘Docket No. FAA–
2017–0331; Directorate Identifier 2016–
NM–213–AD’’ at the beginning of your
comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of this proposed AD. We will
consider all comments received by the
closing date and may amend this
proposed AD based on those comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this proposed AD.
Discussion
Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada, has issued Canadian
Airworthiness Directive CF–2016–36,
dated December 6, 2016, (referred to
after this as the Mandatory Continuing
Airworthiness Information, or ‘‘the
MCAI’’), to correct an unsafe condition
for certain Bombardier, Inc. Model
DHC–8–102, –103, –106, –201, –202,
–301, –311, and –315 airplanes. The
MCAI states:
E:\FR\FM\02MYP1.SGM
02MYP1
20454
Federal Register / Vol. 82, No. 83 / Tuesday, May 2, 2017 / Proposed Rules
Two cases of undamped main landing gear
(MLG) extension were reported in-service.
Investigation determined that the MLG
retraction actuator rod-ends failed as a result
of non-conforming threads. This condition, if
not corrected, could lead to additional MLG
undamped extensions, which may result in
MLG structural failure, resulting in an unsafe
asymmetric landing gear configuration.
This [Canadian] AD mandates the
replacement of the MLG retraction actuator
rod-end subassemblies manufactured with
non-conforming threads with units that fully
conform to the design requirements.
You may examine the MCAI in the
AD docket on the Internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2017–
0331.
Related Service Information Under 1
CFR Part 51
Bombardier, Inc. issued Service
Bulletin 8–32–179, Revision A, dated
March 9, 2017. This service information
describes procedures for replacing the
MLG retraction actuator rod-ends on
both MLG assemblies with units that
fully conform to the design
requirements. This service information
is reasonably available because the
interested parties have access to it
through their normal course of business
or by the means identified in the
ADDRESSES section.
FAA’s Determination and Requirements
of This Proposed AD
This product has been approved by
the aviation authority of another
country, and is approved for operation
in the United States. Pursuant to our
bilateral agreement with the State of
Design Authority, we have been notified
of the unsafe condition described in the
MCAI and service information
referenced above. We are proposing this
AD because we evaluated all pertinent
information and determined an unsafe
condition exists and is likely to exist or
develop on other products of the same
type design.
Costs of Compliance
We estimate that this proposed AD
affects 91 airplanes of U.S. registry.
We estimate the following costs to
comply with this proposed AD:
ESTIMATED COSTS
Action
Labor cost
Parts cost
Cost per
product
Cost on U.S.
operators
Replacement ..........................
3 work-hours × $85 per hour = $255 .....................................
$2,078
$2,333
$212,303
jstallworth on DSK7TPTVN1PROD with PROPOSALS
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
section 106, describes the authority of
the FAA Administrator. ‘‘Subtitle VII:
Aviation Programs,’’ describes in more
detail the scope of the Agency’s
authority.
We are issuing this rulemaking under
the authority described in ‘‘Subtitle VII,
Part A, Subpart III, Section 44701:
General requirements.’’ Under that
section, Congress charges the FAA with
promoting safe flight of civil aircraft in
air commerce by prescribing regulations
for practices, methods, and procedures
the Administrator finds necessary for
safety in air commerce. This regulation
is within the scope of that authority
because it addresses an unsafe condition
that is likely to exist or develop on
products identified in this rulemaking
action.
Regulatory Findings
We determined that this proposed AD
would not have federalism implications
under Executive Order 13132. This
proposed AD would not have a
substantial direct effect on the States, on
the relationship between the national
Government and the States, or on the
distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify this proposed regulation:
1. Is not a ‘‘significant regulatory
action’’ under Executive Order 12866;
VerDate Sep<11>2014
14:40 May 01, 2017
Jkt 241001
2. Is not a ‘‘significant rule’’ under the
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979);
3. Will not affect intrastate aviation in
Alaska; and
4. Will not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Bombardier, Inc. Model
DHC–8–102, –103, –106, –201, –202, –301,
–311, and –315 airplanes, certificated in any
category, serial numbers 003 through 672
inclusive, equipped with main landing gear
(MLG) retraction actuator assembly part
number 10500–101, –103, –501, –551, or
–553.
(d) Subject
Air Transport Association (ATA) of
America Code 32, Landing Gear.
(e) Reason
The Proposed Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA proposes to amend 14 CFR part
39 as follows:
This AD was prompted by reports of an
undamped MLG extension in-service. We are
issuing this AD to prevent MLG undamped
extensions, which could result in MLG
structural failure, resulting in an unsafe
asymmetric landing gear configuration.
PART 39—AIRWORTHINESS
DIRECTIVES
(f) Compliance
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive (AD):
■
Bombardier, Inc.: Docket No. FAA–2017–
0331; Directorate Identifier 2016–NM–
213–AD.
(a) Comments Due Date
We must receive comments by June 16,
2017.
PO 00000
Frm 00005
Fmt 4702
Sfmt 4702
Comply with this AD within the
compliance times specified, unless already
done.
(g) Replacement of MLG Retraction Actuator
Rod-Ends
At the applicable time specified in
paragraph (g)(1) or (g)(2) of this AD: Replace
the MLG retraction actuator rod-ends on both
MLG assemblies, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 8–32–179, Revision A, dated
March 9, 2017.
(1) For MLG retraction actuator assemblies
with 37,000 total flight cycles or more as of
the effective date of this AD: Within 18
months or 2,700 flight cycles, whichever
occurs first after the effective date of this AD.
E:\FR\FM\02MYP1.SGM
02MYP1
Federal Register / Vol. 82, No. 83 / Tuesday, May 2, 2017 / Proposed Rules
(2) For MLG retraction actuator assemblies
with fewer than 37,000 total flight cycles as
of the effective date of this AD: Within 24
months or 3,600 flight cycles, whichever
occurs first after the effective date of this AD.
(h) Alternative Installation of Part Number
(P/N) 10500–105, –503, or –555
Installation of MLG retraction actuator
assembly P/N 10500–105, –503, or –555 on
both MLGs is acceptable for compliance with
the replacement required by paragraph (g) of
this AD.
(i) Credit for Previous Actions
This paragraph provides credit for actions
required by paragraph (g) of this AD, if those
actions were performed before the effective
date of this AD using Bombardier Service
Bulletin 8–32–179, dated July 10, 2015.
jstallworth on DSK7TPTVN1PROD with PROPOSALS
(j) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York Aircraft
Certification Office (ACO), ANE–170, FAA,
has the authority to approve AMOCs for this
AD, if requested using the procedures found
in 14 CFR 39.19. In accordance with 14 CFR
VerDate Sep<11>2014
14:40 May 01, 2017
Jkt 241001
39.19, send your request to your principal
inspector or local Flight Standards District
Office, as appropriate. If sending information
directly to the manager of the ACO, send it
to the attention of the person identified in
paragraph (k)(2) of this AD. Before using any
approved AMOC, notify your appropriate
principal inspector, or lacking a principal
inspector, the manager of the local flight
standards district office/certificate holding
district office.
(2) Contacting the Manufacturer: For any
requirement in this AD to obtain corrective
actions from a manufacturer, the action must
be accomplished using a method approved
by the Manager, New York ACO, ANE–170,
FAA; or Transport Canada Civil Aviation
(TCCA); or Bombardier, Inc.’s TCCA Design
Approval Organization (DAO). If approved by
the DAO, the approval must include the
DAO-authorized signature.
(k) Related Information
(1) Refer to Mandatory Continuing
Airworthiness Information (MCAI) Canadian
Airworthiness Directive CF–2016–36, dated
December 6, 2016, for related information.
This MCAI may be found in the AD docket
on the Internet at https://www.regulations.gov
PO 00000
Frm 00006
Fmt 4702
Sfmt 9990
20455
by searching for and locating Docket No.
FAA–2017–0331.
(2) For more information about this AD,
contact the Program Manager, Continuing
Operational Safety, FAA, New York ACO,
1600 Stewart Avenue, Suite 410, Westbury,
NY 11590; telephone 516–228–7300; fax
516–794–5531.
(3) For service information identified in
this AD, contact Bombardier, Inc., Q-Series
Technical Help Desk, 123 Garratt Boulevard,
Toronto, Ontario M3K 1Y5, Canada;
telephone 416–375–4000; fax 416–375–4539;
email thd.qseries@aero.bombardier.com;
Internet https://www.bombardier.com. You
may view this service information at the
FAA, Transport Airplane Directorate, 1601
Lind Avenue SW., Renton, WA. For
information on the availability of this
material at the FAA, call 425–227–1221.
Issued in Renton, Washington, on April 24,
2017.
Paul Bernado,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2017–08830 Filed 5–1–17; 8:45 am]
BILLING CODE 4910–13–P
E:\FR\FM\02MYP1.SGM
02MYP1
Agencies
[Federal Register Volume 82, Number 83 (Tuesday, May 2, 2017)]
[Proposed Rules]
[Pages 20453-20455]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-08830]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2017-0331; Directorate Identifier 2016-NM-213-AD]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to adopt a new airworthiness directive (AD) for
certain Bombardier, Inc. Model DHC-8-102, -103, -106, -201, -202, -301,
-311, and -315 airplanes. This proposed AD was prompted by reports of
undamped main landing gear (MLG) extension in-service. This proposed AD
would require replacement of the MLG retraction actuator rod-ends on
both MLG assemblies. We are proposing this AD to address the unsafe
condition on these products.
DATES: We must receive comments on this proposed AD by June 16, 2017.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202-493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this NPRM, contact
Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard,
Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; fax 416-375-
4539; email thd.qseries@aero.bombardier.com; Internet https://www.bombardier.com. You may view this referenced service information at
the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton,
WA. For information on the availability of this material at the FAA,
call 425-227-1221.
Examining the AD Docket
You may examine the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0331; or in person at the Docket Management Facility between 9 a.m. and
5 p.m., Monday through Friday, except Federal holidays. The AD docket
contains this proposed AD, the regulatory evaluation, any comments
received, and other information. The street address for the Docket
Operations office (telephone 800-647-5527) is in the ADDRESSES section.
Comments will be available in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Fabio Buttitta, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury,
NY 11590; telephone 516-228-7303; fax 516-794-5531.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under the ADDRESSES section. Include ``Docket No. FAA-2017-0331;
Directorate Identifier 2016-NM-213-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this proposed AD. We
will consider all comments received by the closing date and may amend
this proposed AD based on those comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.
Discussion
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian Airworthiness Directive CF-
2016-36, dated December 6, 2016, (referred to after this as the
Mandatory Continuing Airworthiness Information, or ``the MCAI''), to
correct an unsafe condition for certain Bombardier, Inc. Model DHC-8-
102, -103, -106, -201, -202, -301, -311, and -315 airplanes. The MCAI
states:
[[Page 20454]]
Two cases of undamped main landing gear (MLG) extension were
reported in-service. Investigation determined that the MLG
retraction actuator rod-ends failed as a result of non-conforming
threads. This condition, if not corrected, could lead to additional
MLG undamped extensions, which may result in MLG structural failure,
resulting in an unsafe asymmetric landing gear configuration.
This [Canadian] AD mandates the replacement of the MLG
retraction actuator rod-end subassemblies manufactured with non-
conforming threads with units that fully conform to the design
requirements.
You may examine the MCAI in the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0331.
Related Service Information Under 1 CFR Part 51
Bombardier, Inc. issued Service Bulletin 8-32-179, Revision A,
dated March 9, 2017. This service information describes procedures for
replacing the MLG retraction actuator rod-ends on both MLG assemblies
with units that fully conform to the design requirements. This service
information is reasonably available because the interested parties have
access to it through their normal course of business or by the means
identified in the ADDRESSES section.
FAA's Determination and Requirements of This Proposed AD
This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to our bilateral agreement with the State of Design Authority, we have
been notified of the unsafe condition described in the MCAI and service
information referenced above. We are proposing this AD because we
evaluated all pertinent information and determined an unsafe condition
exists and is likely to exist or develop on other products of the same
type design.
Costs of Compliance
We estimate that this proposed AD affects 91 airplanes of U.S.
registry.
We estimate the following costs to comply with this proposed AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Replacement......................... 3 work-hours x $85 per $2,078 $2,333 $212,303
hour = $255.
----------------------------------------------------------------------------------------------------------------
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. ``Subtitle VII: Aviation
Programs,'' describes in more detail the scope of the Agency's
authority.
We are issuing this rulemaking under the authority described in
``Subtitle VII, Part A, Subpart III, Section 44701: General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
Regulatory Findings
We determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would not
have a substantial direct effect on the States, on the relationship
between the national Government and the States, or on the distribution
of power and responsibilities among the various levels of government.
For the reasons discussed above, I certify this proposed
regulation:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979);
3. Will not affect intrastate aviation in Alaska; and
4. Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
The Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):
Bombardier, Inc.: Docket No. FAA-2017-0331; Directorate Identifier
2016-NM-213-AD.
(a) Comments Due Date
We must receive comments by June 16, 2017.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Bombardier, Inc. Model DHC-8-102, -103, -106,
-201, -202, -301, -311, and -315 airplanes, certificated in any
category, serial numbers 003 through 672 inclusive, equipped with
main landing gear (MLG) retraction actuator assembly part number
10500-101, -103, -501, -551, or -553.
(d) Subject
Air Transport Association (ATA) of America Code 32, Landing
Gear.
(e) Reason
This AD was prompted by reports of an undamped MLG extension in-
service. We are issuing this AD to prevent MLG undamped extensions,
which could result in MLG structural failure, resulting in an unsafe
asymmetric landing gear configuration.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Replacement of MLG Retraction Actuator Rod-Ends
At the applicable time specified in paragraph (g)(1) or (g)(2)
of this AD: Replace the MLG retraction actuator rod-ends on both MLG
assemblies, in accordance with the Accomplishment Instructions of
Bombardier Service Bulletin 8-32-179, Revision A, dated March 9,
2017.
(1) For MLG retraction actuator assemblies with 37,000 total
flight cycles or more as of the effective date of this AD: Within 18
months or 2,700 flight cycles, whichever occurs first after the
effective date of this AD.
[[Page 20455]]
(2) For MLG retraction actuator assemblies with fewer than
37,000 total flight cycles as of the effective date of this AD:
Within 24 months or 3,600 flight cycles, whichever occurs first
after the effective date of this AD.
(h) Alternative Installation of Part Number (P/N) 10500-105, -503, or -
555
Installation of MLG retraction actuator assembly P/N 10500-105,
-503, or -555 on both MLGs is acceptable for compliance with the
replacement required by paragraph (g) of this AD.
(i) Credit for Previous Actions
This paragraph provides credit for actions required by paragraph
(g) of this AD, if those actions were performed before the effective
date of this AD using Bombardier Service Bulletin 8-32-179, dated
July 10, 2015.
(j) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York Aircraft Certification Office (ACO), ANE-170, FAA, has the
authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19,
send your request to your principal inspector or local Flight
Standards District Office, as appropriate. If sending information
directly to the manager of the ACO, send it to the attention of the
person identified in paragraph (k)(2) of this AD. Before using any
approved AMOC, notify your appropriate principal inspector, or
lacking a principal inspector, the manager of the local flight
standards district office/certificate holding district office.
(2) Contacting the Manufacturer: For any requirement in this AD
to obtain corrective actions from a manufacturer, the action must be
accomplished using a method approved by the Manager, New York ACO,
ANE-170, FAA; or Transport Canada Civil Aviation (TCCA); or
Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If
approved by the DAO, the approval must include the DAO-authorized
signature.
(k) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) Canadian Airworthiness Directive CF-2016-36, dated December
6, 2016, for related information. This MCAI may be found in the AD
docket on the Internet at https://www.regulations.gov by searching
for and locating Docket No. FAA-2017-0331.
(2) For more information about this AD, contact the Program
Manager, Continuing Operational Safety, FAA, New York ACO, 1600
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-
7300; fax 516-794-5531.
(3) For service information identified in this AD, contact
Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt
Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000;
fax 416-375-4539; email thd.qseries@aero.bombardier.com; Internet
https://www.bombardier.com. You may view this service information at
the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW.,
Renton, WA. For information on the availability of this material at
the FAA, call 425-227-1221.
Issued in Renton, Washington, on April 24, 2017.
Paul Bernado,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2017-08830 Filed 5-1-17; 8:45 am]
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